<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }
        
        #content {
            display: grid;
            width: 300px;
            height: 300px;
            border-radius: 25%;
            background-color: skyblue;
            grid-template-columns: repeat(3, 100px);
            grid-template-rows: repeat(3, 100px);
            box-shadow: 5px 5px 10px rgba(46, 43, 43, 0.3);
            margin: 10px 0;
        }
        
        .item {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background-color: slateblue;
        }
        
        .circle1 {
            grid-row-start: 2;
            grid-column-start: 2;
        }
        
        .circle2 {
            grid-row-start: 1;
            grid-column-start: 1;
        }
        
        .circle3 {
            grid-row-start: 3;
            grid-column-start: 3;
        }
        
        .circle4 {
            grid-row-start: 3;
            grid-column-start: 1;
        }
        
        .circle5 {
            grid-row-start: 1;
            grid-column-start: 3;
        }
        
        .circle6 {
            grid-row-start: 2;
            grid-column-start: 3;
        }
        
        .circle7 {
            grid-row-start: 2;
            grid-column-start: 1;
        }
    </style>
</head>

<body>

    <div id="content">
        <div class="item circle1"></div>
    </div>
    <div id="content">
        <div class="item circle2"></div>
        <div class="item circle3"></div>
    </div>
    <div id="content">
        <div class="item circle2"></div>
        <div class="item circle1"></div>
        <div class="item circle3"></div>
    </div>
    <div id="content">
        <div class="item circle2"></div>
        <div class="item circle4"></div>
        <div class="item circle5"></div>
        <!-- <div class="item circle1"></div> -->
        <div class="item circle3"></div>
    </div>
    <div id="content">
        <div class="item circle2"></div>
        <div class="item circle4"></div>
        <div class="item circle1"></div>
        <div class="item circle5"></div>
        <!-- <div class="item circle1"></div> -->
        <div class="item circle3"></div>
    </div>
    <div id="content">
        <div class="item circle2"></div>
        <div class="item circle4"></div>
        <div class="item circle5"></div>
        <div class="item circle6"></div>
        <div class="item circle7"></div>
        <!-- <div class="item circle1"></div> -->
        <div class="item circle3"></div>
    </div>
</body>

</html>